What's this? Someone who was adopted that doesn't care about who her real parents are? And even though she finds out her biological dad is a villain, doesn't go "WE ARE RELATED BY BLOOD THIS MEANS I MUST BE THE ONE TO DEFEAT HIM" or "Maybe he's not actually a bad guy... Maybe he has a reason? PLEASE DADDY BE GOOD" Madness!
I'd like to pick this up JUST for that. You don't see adoption handled like that much in fiction. At least not the fiction I seem to read.